<template>
    <div><!--upload对应后端请求-->
        <el-upload
                action="http://localhost:9002/upload"
                :on-preview="handlePreview"
                :on-remove="handleRemove"
                :before-remove="beforeRemove"
                multiple
                :limit="3"
                :on-exceed="handleExceed">
            <el-button size="small" type="primary">点击上传</el-button>
            <div slot="tip" class="el-upload__tip">只能上传jpg/png文件，且不超过500kb</div>
        </el-upload>
        <el-upload
                action="http://localhost:9002/upload"
                list-type="picture-card"
                :on-preview="handlePictureCardPreview"
                :on-remove="handleRemove">
            <i class="el-icon-plus"></i>
        </el-upload>
        <el-dialog :visible.sync="dialogVisible">
            <img width="100%" :src="dialogImageUrl" alt="">
        </el-dialog>
    </div>
</template>

<script>
    export default {
        name: "pic1",
        data() {
            return {
                dialogImageUrl: '',
                dialogVisible: false
            };
        },
        methods: {
            handleRemove(file, fileList) {
                console.log(file, fileList);
            },
            handlePictureCardPreview(file) {
                this.dialogImageUrl = file.url;
                this.dialogVisible = true;
            },
            handleRemove(file, fileList) {
                console.log(file, fileList);
            },
            handlePreview(file) {//上传成功的文件预览
                window.open(file.response.url)//服务端返回的json
                console.log(file);
            },
            handleExceed(files, fileList) {
                this.$message.warning(`当前限制选择 3 个文件，本次选择了 ${files.length} 个文件，共选择了 ${files.length + fileList.length} 个文件`);
            },
            beforeRemove(file, fileList) {
                return this.$confirm(`确定移除 ${ file.name }？`);
            }
        }
    }
</script>

<style scoped>

</style>